64536384 has 56 divisors (see below), whose sum is σ = 186281568. Its totient is φ = 19555840.

The previous prime is 64536371. The next prime is 64536391. The reversal of 64536384 is 48363546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13167 + ... + 17390.

Almost surely, 2^64536384 is an apocalyptic number.

64536384 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

64536384 is an abundant number, since it is smaller than the sum of its proper divisors (121745184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64536384 is a wasteful number, since it uses less digits than its factorization.

64536384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30583 (or 30573 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The square root of 64536384 is about 8033.4540516518. The cubic root of 64536384 is about 401.1143592922.

The spelling of 64536384 in words is "sixty-four million, five hundred thirty-six thousand, three hundred eighty-four".